Looking at the two MeSH mesh:D005277 mesh:D020372, I see that Fenfluramin should be the R and Dexfenfluramin should be the R stereo-isomer. In ChemSpider, the undefined stereo-isomer links to both, and dexfenfluramin is also a separate compound named "adifax".

Curated Date:

15/07/2013 17:37:17

Verdict:

Thank you for your feedback. MeSH seems to refer to both the R- and the (+-)- as Fenfluramin, so I am leaving this mapping on both records. Dexfenfluramin appears on the correct record (S-stereoisomer).